Most of these are part of the RPD K-9 Unit and several strays that have been infected. A few domesticated species have also been infected. They like to go straight for the jugular and seem to hunt in packs.

A giant spider mutated by the infection. The virus brings about rapid growth in the spider and the ability to spit poison at its prey. Ironically, although called a "Web Spinner," they have evolved beyond the need for a web, preferring to chase and attack their prey more directly. These spiders have kept their abilities to scale walls and ceilings and can often attack from unpredictable angles.